Claude Opus 5 vs Inkling: side-by-side summary

Claude Opus 5 and Inkling are available through the OpenRouter API, so switching between them takes a model slug change rather than a new integration.

Claude Opus 5, from Anthropic, has a 1,000,000-token context window and is priced at $5/M tokens input, $25/M tokens output on OpenRouter.

Inkling, from thinkingmachines, has a 1,048,576-token context window and is priced at $0.95/M tokens input, $4.05/M tokens output on OpenRouter.

Context window

• Claude Opus 5: 1,000,000 tokens
• Inkling: 1,048,576 tokens

Price

• Claude Opus 5: $5/M tokens input, $25/M tokens output
• Inkling: $0.95/M tokens input, $4.05/M tokens output

Provided by

• Claude Opus 5: Anthropic
• Inkling: thinkingmachines

• Claude Opus 5 model details, providers and pricing
• Inkling model details, providers and pricing